Magneto-optical studies of transition-metal dichalcogenides using visible pump, mid-infrared probe measurements

ORAL

Abstract

We report systematic magneto-optical measurements on transition-metal dichalcogenides such as MoS2 and WS2. We perform polarization-sensitive photoluminescence measurements when populating different valleys as a function of temperature. By measuring the mid-infrared (110--230 meV) Faraday and Kerr signals while populating different valleys using polarized visible light at zero magnetic field, we test time-reversal symmetry breaking in these materials. This work is supported by NSF-DMR1410599.

*NSF-DMR1410599

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Authors

  • Jungryeol Seo

    • Physics Dept., University at Buffalo, Buffalo, NY, USA

  • Mumtaz Murat Arik

    • Physics Dept., University at Buffalo, Buffalo, NY, USA

  • Alok Mukherjee

    • Physics Dept., University at Buffalo, Buffalo, NY, USA

  • Chuan Zhao

    • Physics Dept., University at Buffalo, Buffalo, NY, USA

  • Payam Taheri

    • Physics Dept., University at Buffalo, Buffalo, NY, USA

  • Brett Blizzard

    • Physics Dept., University at Buffalo, Buffalo, NY, USA

  • Hao Zeng

    • Physics Dept., University at Buffalo, Buffalo, NY, USA

  • John Cerne

    • Physics Dept., University at Buffalo, Buffalo, NY, USA

  • Mustafa Eginligil

    • Institute of Advanced Materials, Nanjing Tech University, Nanjing, Jiangsu, China

  • Ting Yu

    • Nanyang Technological University, Singapore